Polyurethane waterproofing material in claim 1, polyurethane waterproof coating (double), should the factory certification, two-component polyurethane waterproof coating, should be used after re-examination qualified. 2, Part A, is the starting polyether resin and a diisocyanate, etc., road and bridge waterproof coating, made through polymerization and reaction containing terminal isocyanate groups polyurethane prepolymer, the appearance of light yellow viscous, barrel loaded barrel 20kg. Part B is curing agents, accelerators, toughening agents, antifungal agents, fillers and the like mixing processed into rare appearance with red, black, white, yellow and brown, etc., cream, bottled, barrel 40kg. When waterproof coating choice, but also very luxurious. Waterproof coating is the most used place between the bathroom and the kitchen, the waterproof layer is to have a certain thickness, the amount of material used will be relatively large. Therefore, the choice to select a non-tar waterproofing coating, the material quality and pollution is also small, and has good adhesion. Waterproof coating waterproof performance is also very strong, Chengde waterproof coating, waterproof layer and can make up for some flaws exist. Without sand grouts suitable slit width of about 1 mm - 10 mm, K11 waterproof coating, the small particles, if the slit width is relatively large is likely to cause cracking. Therefore, we still should choose those more delicate, and easy to fall off the grouts. K11 waterproof coating _ long the source of waterproof material (certified) _ Wuhan waterproof coating provided by the Weifang City waterproof material Co., long the source. Weifang City for the source of waterproof material Ltd. (www.jiuyuanfangshui.com) Shandong Weifang, waterproof, moisture-proof material leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the long waterproof material source leadership with the staff warmly welcome all inquiries negotiations to create a source of long waterproof material better future.